package com.gao.sentinel.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisSentinelConfiguration;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettucePoolingClientConfiguration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.List;

@Configuration
public class RedisConfig extends CachingConfigurerSupport {

    @Autowired
    private RedisPropertiesConfig redisPropertiesConfig;

    @Bean(name = "masterRedisTemplate")
    @Primary
    public RedisTemplate<String, Object> redisTemplate() {
        RedisMaster master = redisPropertiesConfig.getRedisMaster();
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        RedisConnectionFactory factory = connectionFactory(master.getRedisNode());
        template = setRedisConnectionFactory(factory);
        return template;
    }

    @Bean(name = "slaveRedisTemplateList")
    public List<RedisTemplate<String, Object>> slaveRedisTemplate() {
        // slave
        List<MyRedisNode> redisSlaveList = redisPropertiesConfig.getRedisSlaves().getRedisNode();
        List<RedisTemplate<String, Object>> templateList = new ArrayList<>();
        for (MyRedisNode slave: redisSlaveList) {
            RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
            RedisConnectionFactory factory = connectionFactory(slave);
            redisTemplate = setRedisConnectionFactory(factory);
            templateList.add(redisTemplate);
        }

        return templateList;
    }

    /**
     * redisTemplate 序列化
     * @param redisConnectionFactory
     * @return
     */
    private RedisTemplate<String, Object> setRedisConnectionFactory(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 配置连接工厂
        template.setConnectionFactory(redisConnectionFactory);
        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）
        Jackson2JsonRedisSerializer<Object> jacksonSeial = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper obm = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        obm.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会抛出异常
        obm.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jacksonSeial.setObjectMapper(obm);

        // 值采用json序列化
        template.setValueSerializer(jacksonSeial);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());

        // 设置hash key 和value序列化模式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(jacksonSeial);
        template.afterPropertiesSet();

        return template;
    }

    public RedisConnectionFactory connectionFactory(MyRedisNode myRedisNode) {

        LettuceConnectionFactory factory = new LettuceConnectionFactory();
        // 配置哨兵
        if (myRedisNode.getSentinel() != null) {
            factory = new LettuceConnectionFactory(redisSentinelConfiguration(myRedisNode.getSentinel()));
        }
        factory.setHostName(myRedisNode.getHost());
        factory.setPort(myRedisNode.getPort());
        if (!StringUtils.isEmpty(myRedisNode.getPassword())) {
            factory.setPassword(myRedisNode.getPassword());
        }
        factory.setDatabase(myRedisNode.getDatabase());
        factory.setTimeout(myRedisNode.getTimeout());
        factory.afterPropertiesSet();
        return factory;
    }

    /**
     * 哨兵
     * @param redisSentinel
     * @return
     */
    @Bean
    public RedisSentinelConfiguration redisSentinelConfiguration(RedisSentinel redisSentinel) {
        RedisSentinelConfiguration sentinelConfiguration = new RedisSentinelConfiguration();
        List<RedisNode> redisNodes = new ArrayList<>();
        for (String node: redisSentinel.getNode()) {
            redisNodes.add(new RedisNode(node.split(":")[0], Integer.parseInt(node.split(":")[1])));
            sentinelConfiguration.setSentinels(redisNodes);
        }
        sentinelConfiguration.setMaster(redisSentinel.getMaster());
        // 哨兵密码配置
        if (!StringUtils.isEmpty(redisSentinel.getPassword())) {
            sentinelConfiguration.setSentinelPassword(redisSentinel.getPassword());
        }
        return sentinelConfiguration;
    }

}
